Email aliases
@cc.me addresses that forward to your inbox.
HTTP
OAuth callback trampolines, sealed webhook inboxes, and client libraries for JS, Python, Go, Rust, and Ruby.
Secrets
Encrypt a note in your browser, share the link, and optionally burn it after reading.
Library
Distributed semaphore: borrow numbered slots with auto-expiring leases.
Favicons
Fetch and cache the favicon of any URL, embeddable as an image from anywhere.
Fonts
Search the Google Fonts catalog and download font files over a simple API.